JPH07184451A - Reaping part for combine harvester - Google Patents

Abstract

PURPOSE:To eliminate retention of stem and culm in a transporting route causing winding of stem and culm round a raking rotator. CONSTITUTION:This reaping part for a combine harvester is equipped with a raking rotator 4 of approximately toothed wheel shape which acts on the plant foot side of stem and culm cut by a reaping device 3 and is revolved so as to rake the reaped stem and culm toward a longitudinal conveyor at a rear part position of a raising device and with a triangular scraper member approaching the raking rotator 4 from below. The scraper member is reciprocatively driven to discharge the wound stem and culm. A deck member 14 to be brought into contact with the stock end part of the transported stem and culm is arranged below a stem and culm transporting route W by the raking rotator 4 and a transmission mechanism 17 for moving the deck member 14 together with a movable blade 3b in an integrated way and forcedly reciprocating the deck member vibrationally is installed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for obtaining a good stem-culm conveying state without clogging in a combine harvester.

[0002]

2. Description of the Related Art Conventionally, as with a combine disclosed in Japanese Utility Model Laid-Open No. 2-29224, a raised stem culm is cut with a reaping device, and the stalk culm is acted on the root of the harvested plant to remove the stem. The general structure of the reaping section is that a scraping rotary member that is forcibly transferred to the vertical conveying device is provided on the rear side of the raising device.

[0003]

In order to forcibly convey the cut stalks from the left and right in the swaging rotary body while merging the cut stalks from the left and right, the stalk culm density is high at the scraping rotary body portion. Therefore, the transported stems tend to be stagnant and clogged, and the stems are wound around the gear-shaped outer peripheral portion of the scraping rotor, which tends to hinder a good transport function. Therefore, as disclosed in the above-mentioned publication, a guide rod for guiding the transfer path of the stems is provided at the rotary body part for scraping, so that the winding of the stems is eliminated.

[0004] However, the stem-culm conveying path by the scraping rotary member is usually located directly above the mowing device, and the frame member such as the support rod of the weeding tool is also complicated. Since the ends are in contact with these members and are transported, there is still a tendency for them to remain stagnant, and the stem culms are bent or shredded near the plant base, and there are guide rods. Even so, it was possible that the scraped-in rotating body was wrapped around the rotating body. An object of the present invention is to eliminate the stagnation of stem culms, which causes stalks to wind around the scraping rotary member.

[0005]

[Means for Solving the Problems] To achieve the above object, the present invention acts on a rear side position of a raising device in a cutting part of a combine, and on a root side of a stem culm cut by the cutting device. Equipped with a scraping and conveying mechanism that scrapes and conveys the cut stalks toward the starting end of the vertical conveying device. It is characterized in that it is provided with a transmission mechanism for oscillating and forcibly reciprocating the deck member.

[0006]

That is, although the contact between the frame member and the plant end causes the stalks to be conveyed stagnant, it is impossible to eliminate the contact due to the structure of the cutting unit. Therefore, the deck member provided below the stem-culm transport path exists in a state of covering the fixed member such as the weeding frame, and since the deck member is vibrated and forcedly reciprocated, Even if contact occurs, the vibration makes it difficult for mud to adhere and facilitates the transfer of stock ends. Therefore, the stalk stagnation in the transport path is eliminated or almost eliminated, and the winding phenomenon around the scraping rotary member is improved accordingly.

[0007]

As a result, by vibrating the contact portion between the fixing member of the mowing part and the stock end in the stem-culm conveying path at the scraping rotating body part, there is no need for a major modification to change the basic structure of the mowing part. Further, clogging of the conveyance and sticking of the culm to the scraping rotary member were further reduced, and a smoother conveyance state was obtained.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a combine front part having a mowing part A, in which 1 is a weeding tool, 2 is a raising device, 3 is a mowing device, 4 is a scraping rotary member, 5 is a vertical conveying device, 6 Is a feed chain, 12 is a threshing device, and 13 is a crawler traveling device.

As shown in FIGS. 2 and 3, the reaping device 3 is a hair clipper type that acts by relative lateral sliding of the fixed blade 3a and the movable blade 3b, and is movable with the crank arm 7 that reciprocally swings at a fulcrum P. It is a structure in which the blade 3b is abutted and interlocked with each other by fitting at the fulcrum Q. A drive rod 8 that is continuously pushed and pulled by a drive system (not shown) is connected to the crank arm 7, and 7a is a balance weight.

Rotating rotary member (corresponding to a scraping conveying mechanism) 4
Are formed in a substantially gear shape, and the left and right parts thereof are engaged with each other to be interlockingly driven, and are arranged at the rear side position of the raising device 2. The vertical conveying device 5 is composed of a plant base pinching / conveying mechanism 5A that nips and conveys the stem base side of the stem, and an ear tip locking / conveying mechanism 5B that locks and conveys the tip side.

As shown in FIGS. 1 to 3, the scraping rotary member 4
Is to act on the plant base side of the stem culms cut by the reaping device 3 and forcibly feed the stalks to the vertical conveying device 5, and join and convey the left and right stalks to the rear. It is a device. Then, a scraper member 9 is arranged in proximity to the rear half of the scraping rotor 4 on the right side in the machine body advancing direction from below, and the scraper member 9 extends from the rotation center side of the scraping rotor 4 toward the outer diameter side. A drive mechanism 10 for forcibly reciprocating the scraper member 9 is provided so as to repeatedly perform the discharging movement and the returning movement. Further, guide rods 15 and 16 for guiding the stalk-carrying path W are provided above and below the left and right scraping rotary members 4 and 4, respectively.

More specifically, the rotary shaft 4j of the take-in rotary member 4
A cylindrical flange 11 for preventing the stems from being wound around the rotary shaft 4j is loosely fitted to the rotary shaft 4j, a scraping rotary member 4 is supported directly above the crank flange 7, and a crank arm 7 is supported directly below. . A substantially triangular scraper member 9 is bolted to the cylinder flange 11, and the cylinder flange 11 and the crank arm 7 are integrally connected. That is, the drive mechanism 10 is configured so that the scraper member 9 continuously reciprocates about the rotation shaft 4j, that is, the fulcrum P, in synchronization with the reciprocating sliding movement of the movable cutting blade 3b.

The discharge acting portion 9a, which is the outer diameter side of the scraper member 9 with respect to the rotating shaft 4j, moves forward as shown in FIG. 2B and is wound around the gear portion 4g of the scraping rotor 4. The stem culms are pushed out, and as shown in FIG. 2 (a), the stems are moved back and returned to their original retracted positions, and this series of operations is repeated. It is more convenient if the scraping member 4 on the left side is also equipped with a scraper member 9 that is reciprocally driven.

Further, as shown in FIGS. 3 and 4, below the stem-culm transfer path W formed by the scraping rotary members 4 and 4, a deck member 14 which contacts the plant end portion of the transported stems is arranged. A transmission mechanism 17 for vibrating and forcibly reciprocating the deck member 14 is provided. That is, the plurality of raised portions 17
A deck member 14 made of a plate on which a is formed is bolted to the movable blade 3b via left and right brackets 18, 18, thereby forming a transmission mechanism 17 that reciprocates left and right integrally with the mowing device 3. ing.

As a result, the culm-carrying path W portion of the frame member such as the weeding frame 1f, the connecting frame 19 that connects the weeding frame 1f to the left or right, or the fixed blade 3a is covered with the deck member 14, and the carrying member The vibration of the deck member 14 in contact with the stock end of the culm promotes the conveyance, and the mud attached to the stock end is also dropped.

[Embodiment] The transmission mechanism 17 may be a special actuator that uses an electric motor, a hydraulic cylinder or the like to vibratically forcibly reciprocate, and the reciprocating movement direction is the front-back direction or the vertical direction. But good. The scraping / conveying mechanism 4 may have a belt moving structure formed by winding a belt having locking claws around front and rear wheels.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a side view of the front part of the combine.

FIG. 2 is a plan view of a rotating rotary member portion.

FIG. 3 is a side view of the rotating rotary member portion.

FIG. 4 is a plan view showing the structure of a deck member and its transmission mechanism.

[Explanation of symbols]

 2 Raising device 3 Mowing device 4 Rotating rotary body 5 Vertical transfer device 14 Deck member 17 Transmission mechanism

Claims (1)

[Claims] 1. At the rear side position of the raising device (2), the cutting stems are acted on the plant base side of the stems cut by the cutting device (3) to the starting end of the vertical conveying device (5). A scraping and transporting mechanism (4) for scraping and transporting toward and including the scraping and transporting mechanism (4)
The deck member (14) that comes into contact with the stock end portion of the transport stalks is arranged below the stalk transport route by the above, and a transmission mechanism (17) for vibrating and forcibly reciprocating the deck member (14) is provided. The combine harvester.